Objective To describe the general characteristics of patients with acute chest pain in order to analyze factors associated with patients’utilization of emergency medical services (EMS).Methods A total of 747 eligible patients with acute chest pain admitted to emergency department of Qilu Hospital were consecutively enrolled from October 2014 to April 2015.Clinical data including demographic features, mode of arrival,past medical history,risk factors,symptoms and signs were collected prospectively by using standardized case report form.Univariate and multivariate analyses were carried out to investigate the association between the decision to use EMS and related factors including demographic features,past medical history,risk factors,symptoms and signs.Results Of the total 747 eligible patients,414 (55.4%)were male ,and the mean age was (57.2 ± 15.8)year;333 (44.6%)were female,and the mean age was (61.7 ±14.9)year.Of them,171 (22.9%)patients used EMS,and 143 chest pain patients with more than 75 years old were more inclined to use EMS (P <0.01),whereas 152 patients in 65 -75 years age group accounted for the lowest proportion of using EMS.Men were more inclined to use EMS than women (P <0.05),and 483 patients with typical chest pain used more EMS than patients with atypical chest pain (P <0.05);Of them,356 patients with a history of hypertension and 54 patients with a history of cerebral infarction were more inclined to use EMS (P <0.05 and P <0.01,respectively).Multivariate logistic regression analysis showed that male,older than 75 years,history of cerebral infarction were independent factors associated with EMS use (P <0.05).Conclusions This study indicated that only less than one-third of emergency department visits with acute chest pain decide to use EMS when symptoms occurred. Factors including male,older than 75 years,and a history of cerebral infarction were associated with more use of EMS.In order to promote patient asking for EMS timely,more work should be done.

This study investigated the effects of telmisartan on insulin resistance in high-fat diet-treated rats and the possible mechanism. A total of 40 male Sprague-Dawley rats enrolled in the study were divided into 4 groups at random: ND group (n=10) and HD group (n=10), in which the rats were given a normal chow diet or a high-fat diet for 20 weeks following a one-week adaptation; ND+telmisartan (n=10) group and HD+telmisartan group (n=10), in which the rats were initially administered in the same way as the ND or HD group, and then they were orally gavaged with telmisartan (5 mg/kg daily) additionally for 5 weeks. Related inflammatory factors were measured by ELISA. Monocyte chemotactic protein 1 (MCP-1), phosphorylated JNK and IκB-α expressions in both adipose and liver were detected by Western blotting. CRP and angiotensin II receptor 1 (AT1) mRNA expressions in both adipose and liver were determined by RT-PCR. The results showed that telmisartan administration in vivo reversed insulin resistance as evidenced by a decrease in plasma fasting glucose levels, plasma fasting insulin levels and homeostasis model of assessment-insulin resistance (HOMA-IR). Furthermore, telmisartan administration significantly reduced serum CRP, TNF-α and IL-1β levels, and elevated serum IL-10 levels. It was also found to hamper the high-fat diet-induced increase in CRP mRNA, AT1 mRNA and MCP-1, and decrease in IκB-α in both adipose and liver. It was concluded that telmisartan administration in vivo may improve insulin resistance through attenuated inflammatory response pathways.

This study investigated the effects of telmisartan on insulin resistance in high-fat diet-treated rats and the possible mechanism.A total of 40 male Sprague-Dawley rats enrolled in the study were divided into 4 groups at random:ND group (n=10) and HD group (n=10),in which the rats were given a normal chow diet or a high-fat diet for 20 weeks following a one-week adaptation; ND+telmisartan (n=10) group and HD+telmisartan group (n=10),in which the rats were initially administered in the same way as the ND or HD group,and then they were orally gavaged with telmisartan (5 mg/kg daily)additionally for 5 weeks.Related inflammatory factors were measured by ELISA.Monocyte chemotactic protein 1 (MCP-1),phosphorylated JNK and Iκ B-α expressions in both adipose and liver were detected by Western blotting.CRP and angiotensin Ⅱ receptor 1 (AT1) mRNA expressions in both adipose and liver were determined by RT-PCR.The results showed that telmisartan administration in vivo reversed insulin resistance as evidenced by a decrease in plasma fasting glucose levels,plasma fasting insulin levels and homeostasis model of assessment-insulin resistance (HOMA-IR).Furthermore,telmisartan administration significantly reduced serum CRP,TNF-α and IL-1β levels,and elevated serum IL-10 levels.It was also found to hamper the high-fat diet-induced increase in CRP mRNA,AT1 mRNA and MCP-1,and decrease in Iκ B-α in both adipose and liver.It was concluded that telmisartan administration in vivo may improve insulin resistance through attenuated inflammatory response pathways.

Objective:To investigate the effect of mobile phone dependence on suppression control under the conditions of emotional loss and cognitive loss in college students.Methods:A total of 553 college students were recruited,and 108 in the mobile phone dependence group and 194 in the non-dependent group were screened with the Mobile Phone Addiction Tendency Scale(MPATS).Ninety-nine of them were selected to participate in experi-ment 1,and the effect of emotional loss on the inhibitory control,and 101 students were selected to participate in ex-periment 2 to investigate the effect of cognitive loss on the inhibitory control.The GO/NOGO paradigm was used to compare the correct rate and response of different mobile phones dependent on college students under different emo-tional and cognitive depletion conditions.Results:In experiment 1,the main effect of emotional loss was statistically significant[F(1,55)=6.16,178.91;Ps＜0.05],the inhibition control accuracy rates were lower and reaction tim-es were shorter in the high emotional loss group than in the low emotional loss group.In experiment 2,the main effect of the group was statistically significant[F(1,57)=17.90,19.06;Ps＜0.001],the accuracy rates of inhibi-tion control were lower and the inhibition control reaction times were longer in the mobile phone-dependent group than in the non-dependent group.The interaction between groups and cognitive loss types was statistically significant[F(1,57)=7.95,P＜0.01],and the inhibition control accuracy rates of the mobile phone-dependent group were lower under high cognitive loss.Conclusion:Emotional loss and cognitive loss could reduce the inhibition and con-trol ability of individuals,and the mobile phone dependence group is more likely to be affected in the case of cogni-tive loss.